Abstract: The invention provides a sustained release, polymer-based, water insoluble bead, comprising a polymeric matrix containing a plurality of emulsion droplets, said droplets being formed from at least one surface active molecule, at lease one volatile hydrophobic component and water, wherein said volatile component is released from said water insoluble bead in atmospheric air.

Abstract: The present invention relates to lubricous coating compositions comprising as active material natural or synthetic jojoba oil which is optionally partially or completely hydrogenated and/or isomerized, and a solvent or a dispersing system (an organic liquid in which the jojoba oil is immiscible and dispersing agent(s)). The solvent is water or any organic liquid or a mixture of organic liquids that are capable to dissolve molecularly, at least partly, the jojoba oil. The dispersing system comprises jojoba oil immiscible organic liquid(s) together with dispersing agent(s) that enable homogeneous dispersion of the jojoba oil in it. The composition is preferably used for coating a substrate which is selected among polymers or plastics or naturally occurring macromolecules with high hydrophobicity or with low or medium surface energy.